If this any help to anyone, here is what Remo offers for odd sized heads. They told me to just order through you local drum shop.
BA-0110-PR- Batter, AMBASSADOR®, Coated, 9-5/8" Diameter
BA-0112-PR- Batter, AMBASSADOR®, Coated, 11-7/8" Diameter
BA-0116-PR- Batter, AMBASSADOR®, Coated, 16-5/16" Diameter
BA-0210-PR- Batter, AMBASSADOR®, SMOOTH WHITE™, 9-5/8" Diameter
BA-0212-PR- Batter, AMBASSADOR®, SMOOTH WHITE™, 11-7/8" Diameter
BA-0216-PR- Batter, AMBASSADOR®, SMOOTH WHITE™, 16-5/16" Diameter
BA-0310-PR- Batter, AMBASSADOR®, Clear, 9-5/8" Diameter
BA-0312-PR- Batter, AMBASSADOR®, Clear, 11-7/8" Diameter
BA-0316-PR- Batter, AMBASSADOR®, Clear, 16-5/16" Diameter
BB-1120-PR- Bass, EMPEROR®, Coated, 19-5/8" Diameter
BB-1220-PR- Bass, EMPEROR®, SMOOTH WHITE™, 19-5/8" Diameter
BB-1320-PR- Bass, EMPEROR®, Clear, 19-5/8" Diameter
BD-0316-PR- Batter, DIPLOMAT®, Clear, 16-5/16" Diameter
BE-0112-PR- Batter, EMPEROR®, Coated, 11-7/8" Diameter
BE-0116-PR- Batter, EMPEROR®, Coated, 16-5/16" Diameter
BE-0216-PR- Batter, EMPEROR®, SMOOTH WHITE™, 16-5/16" Diameter
BE-0312-PR- Batter, EMPEROR®, Clear, 11-7/8" Diameter
BE-0316-PR- Batter, EMPEROR®, Clear, 16-5/16" Diameter
BR-1120-PR- Bass, AMBASSADOR®, Coated, 19-5/8" Diameter
BR-1220-PR- Bass, AMBASSADOR®, SMOOTH WHITE™, 19-5/8" Diameter
BR-1320-PR- Bass, AMBASSADOR®, Clear, 19-5/8" Diameter
CS-0312-PR- Batter, CONTROLLED SOUND®, Clear, 11-7/8" Diameter
CS-0316-PR- Batter, CONTROLLED SOUND®, Clear, BLACK DOT™, 16-5/16" Diameter
FA-0510-PR- Batter, AMBASSADOR®, FIBERSKYN®, 9-5/8" Diameter
FA-0512-PR- Batter, AMBASSADOR®, FIBERSKYN®, 11-7/8" Diameter
FA-0516-PR- Batter, AMBASSADOR®, FIBERSKYN®, 16-5/16" Diameter
FA-1520-PR- Bass, AMBASSADOR®, FIBERSKYN®, 19-5/8" Diameter
FD-0512-PR- Batter, DIPLOMAT®, FIBERSKYN®, 11-7/8" Diameter
PS-0110-PR- Batter, PINSTRIPE®, Coated, 9-5/8" Diameter
PS-0112-PR- Batter, PINSTRIPE®, Coated, 11-7/8" Diameter
PS-0116-PR- Batter, PINSTRIPE®, Coated, 16-5/16" Diameter
PS-0310-PR- Batter, PINSTRIPE®, Clear, 9-5/8" Diameter
PS-0312-PR- Batter, PINSTRIPE®, Clear, 11-7/8" Diameter
PS-0316-PR- Batter, PINSTRIPE®, Clear, 16-5/16" Diameter
PS-1320-PR- Bass, PINSTRIPE®, Clear, 19-5/8" Diameter
SA-0112-PR- Snare, AMBASSADOR®, Hazy, 11-7/8" Diameter
VA-0112-PR- Batter, Vintage AMBASSADOR®, Coated, 11-7/8" Diameter
VA-0116-PR- Batter, Vintage AMBASSADOR®, Coated, 16-5/16" Diameter